SIERRITA MOUNTAIN WATER COOP
Arizona - Community Water System - PWSID: AZ0410208
System Information
| PWSID | AZ0410208 |
| System Name | SIERRITA MOUNTAIN WATER COOP |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Sep 27, 1990 |
| Last Reported | Mar 12, 2026 |
Location & Contact
| State | Arizona |
| City | TUCSON |
| ZIP Code | 85736 |
| Address | ATT GAYLE EVERSULT |
| Organization | SIERRITA MOUNTAIN WATER COOP |
| Phone | 520-780-8028 |
Population & Service
| Population Served | 258 |
| Service Connections | 67 |
Drinking Water Violations (228)
This water system has 228 violations recorded in the EPA SDWIS database.
| Begin Date | End Date | Contaminant | Category | Health-Based | Major | Measured | Federal MCL | State MCL | Status | Return to Compliance | Rule |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 1, 2025 | - | MR | No | No | - | TT | - | Unaddressed | - | - | |
| Oct 1, 2025 | - | MR | No | No | - | TT | - | Unaddressed | - | - | |
| Jul 2, 2025 | - | RPT | No | No | - | - | - | Unaddressed | - | - | |
| May 1, 2025 | May 31, 2025 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | May 31, 2025 | - | |
| May 1, 2025 | May 31, 2025 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | May 31, 2025 | - | |
| Jul 1, 2023 | - | Other | No | No | - | - | - | Resolved | Oct 6, 2023 | - | |
| Jul 1, 2023 | - | Other | No | No | - | - | - | Resolved | Oct 6, 2023 | - | |
| Jan 1, 2023 | - | MR | No | No | - | TT | - | Resolved | Feb 15, 2023 | - | |
| Jan 1, 2023 | - | MR | No | No | - | TT | - | Resolved | Feb 15, 2023 | - | |
| Apr 1, 2022 | Jun 30, 2022 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Jun 30, 2022 | - | |
| Apr 1, 2022 | Jun 30, 2022 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Jun 30, 2022 | - | |
| Oct 1, 2019 | - | MR | No | No | - | TT | - | Resolved | Oct 25, 2019 | - | |
| Oct 1, 2019 | - | MR | No | No | - | TT | - | Resolved | Oct 25, 2019 | - | |
| Oct 1, 2016 | - | Other | No | No | - | - | - | Resolved | Mar 15, 2017 | - | |
| Oct 1, 2016 | - | Other | No | No | - | - | - | Resolved | Mar 15, 2017 | - | |
| Jul 1, 2016 | - | Other | No | No | - | - | - | Resolved | Mar 15, 2017 | - | |
| Jul 1, 2016 | - | Other | No | No | - | - | - | Resolved | Mar 15, 2017 | - | |
| Oct 1, 2015 | Dec 31, 2015 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 31, 2015 | - | |
| Oct 1, 2009 | Dec 31, 2009 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 31, 2009 | - | |
| Oct 1, 2009 | Dec 31, 2009 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 31, 2009 | - | |
| Jul 1, 2009 | Sep 30, 2009 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Sep 30, 2009 | - | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Jun 30, 2009 | - | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Jun 30, 2009 | - | |
| Oct 1, 2008 | Dec 31, 2008 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 31, 2008 | - | |
| Sep 1, 2008 | Sep 30, 2008 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 2008 | - | |
| Sep 1, 2008 | Sep 30, 2008 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2008 | - | |
| Sep 1, 2008 | Sep 30, 2008 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 2008 | - | |
| Jul 1, 2008 | Sep 30, 2008 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Sep 30, 2008 | - | |
| Jul 1, 2008 | Jul 31, 2008 | MR | No | No | - | 5% of samples | - | Resolved | Jul 31, 2008 | - | |
| Jul 1, 2008 | Sep 30, 2008 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Sep 30, 2008 | - | |
| Jul 1, 2008 | Jul 31, 2008 | MR | No | No | - | 5% of samples | - | Resolved | Jul 31, 2008 | - | |
| Apr 1, 2008 | Jun 30, 2008 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Jun 30, 2008 | - | |
| Jan 1, 2008 | Mar 31, 2008 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Mar 31, 2008 | - | |
| Jan 1, 2008 | Dec 31, 2008 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Dec 31, 2008 | - | |
| Jan 1, 2008 | Mar 31, 2008 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Mar 31, 2008 | - | |
| Jan 1, 2008 | Dec 31, 2008 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Dec 31, 2008 | - | |
| Jan 1, 2008 | Dec 31, 2008 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Dec 31, 2008 | - | |
| Jan 1, 2008 | Dec 31, 2008 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Dec 31, 2008 | - | |
| Jan 1, 2007 | Mar 31, 2007 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Mar 31, 2007 | - | |
| Jan 1, 2007 | Mar 31, 2007 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Mar 31, 2007 | - | |
| Oct 1, 2006 | - | MR | No | No | - | TT | - | Resolved | Dec 31, 2007 | - | |
| Jul 1, 2005 | - | Other | No | No | - | - | - | Resolved | May 25, 2006 | - | |
| Jul 1, 2004 | - | MR | No | No | - | TT | - | Resolved | Jul 28, 2008 | - | |
| Sep 1, 2003 | Sep 30, 2003 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 2003 | - | |
| Sep 1, 2003 | Sep 30, 2003 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 2003 | - | |
| Aug 1, 2003 | Aug 31, 2003 | MR | No | No | - | 5% of samples | - | Resolved | Aug 31, 2003 | - | |
| Aug 1, 2003 | Aug 31, 2003 | MR | No | No | - | 5% of samples | - | Resolved | Aug 31, 2003 | - | |
| Jul 1, 2003 | Jul 31, 2003 | MR | No | No | - | 5% of samples | - | Resolved | Jul 31, 2003 | - | |
| Jul 1, 2003 | Jul 31, 2003 | MR | No | No | - | 5% of samples | - | Resolved | Jul 31, 2003 | - | |
| Jul 1, 2003 | - | Other | No | No | - | - | - | Resolved | Jul 1, 2004 | - |
About This Water System
Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.